12V 150A 21338N/12317790548 VALEO car alternator for BMW 118 2.0 E81 2006-2012 M47D20

The 12V 150A 21338N/12317790548 VALEO car alternator for BMW 118 2.0 E81 2006-2012 M47D20 is engineered as a reliable replacement for the BMW 118 2.0 E81 (2006-2012) equipped with the M47D20 engine, ensuring seamless integration with the vehicle’s electrical system. Operating at a stable 12V DC and delivering a continuous output of 150A, it provides sufficient power to support the car’s electrical components—from the starter and lighting to onboard electronics—even under high-demand conditions.​

Featuring an internal voltage regulator, this alternator automatically adjusts output to maintain consistent voltage levels, preventing overcharging of the battery and protecting sensitive electrical systems. This built-in regulation enhances durability and reduces the need for external adjustments, simplifying maintenance.​

Designed for a precise fit, the alternator matches key mechanical specifications: a shaft size of Ø17mm, a pulley with Ø58.5mm diameter and 6PK grooves (compatible with the vehicle’s belt drive), and mounting points with a pivot/adjustment distance of 152mm. Both the adjustment hole and pivot hole have a diameter of Ø10.5mm, ensuring alignment with the original mounting hardware for straightforward installation—no modifications to the engine bay or brackets required. The +B output terminal uses an M8 thread, facilitating secure connection to the battery and electrical system.​

Whether replacing a worn-out original alternator or upgrading to ensure reliable performance, this VALEO unit offers a cost-effective solution. Its robust construction and adherence to OEM standards guarantee long-term reliability, making it suitable for daily commuting and extended use. For BMW 118 2.0 E81 owners seeking a dependable replacement, this alternator delivers the performance and fit needed to keep the vehicle running smoothly.

ZKM80046 Common Application: BMW 118 2.0 E81 2006-2012 M47D20